函数
的导数为( )·3
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·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15572128839803a8dd173bbff4c8a8103a61622b497eaimage16.png"
出自:西南石油大学土木工程施工与组织(专升本)
的导数为( )
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·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15572128839803a8dd173bbff4c8a8103a61622b497eaimage16.png"